import Vue from 'vue'
import VueRouter from 'vue-router'

import Login from '../components/login.vue'
import Home from '../components/home.vue'

import '../assets/css/global.css'


Vue.use(VueRouter)

const routes = [{
        path: '/',
        redirect: '/home'
    },
    {
        path: '/login',
        component: Login,
    },
    {
        path: '/home',
        component: Home,
    }
]

const router = new VueRouter({

    routes
})

export default router

router.beforeEach((to, from, next) => {
    //to 表示将要访问的路径
    //from 代表从哪个路径跳转而来
    //next 是一个函数，表示放行
    // next() 放行 next('/login') 强制跳转
    if (to.path === '/login') return next()
        //获取token
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    next()
})